Precioso, A. R., Pereira, G. R. and Vaz, F. A. C. (2003) “ Gastric myoelectrical activity in neonates of different gestational ages by means of electrogastrography ”, Revista do Hospital das Clínicas, 58(2), pp. 81-90. doi: 10.1590/S0041-87812003000200005.